Airborne 12.09.16

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Airborne 12.09.16

AD NUMBER: 2004-25-19
MANUFACTURER: BombardierSUBJECT: Airworthiness Directive 2004-25-19SUMMARY: The FAA is adopting a new airworthiness
directive (AD) for certain Bombardier Model CL-600-1A11 (CL-600),
CL-600-2A12 (CL-601), CL-600-2B16 (CL-601-3A, CL-601-3R, and
CL-604) series airplanes. This AD requires revising the airplane
flight manual to provide the flightcrew with procedures and
limitations for operating an airplane with out-of-tolerance angle
of attack (AOA) transducers. This AD also requires repetitive
linearity tests of the AOA transducers, and corrective action if
necessary. This AD is prompted by a report of premature wear of the
potentiometers in AOA transducers having a certain part number. We
are issuing this AD to prevent a delay in the stall computer
commands for stall warning, stick shaker, and stick pusher
operation, due to premature wear of the potentiometers of the AOA
transducers, which may cause the airplane to enter a stall
condition, and result in loss of control of the airplane.